ID

VAR-202104-0334

CVE

CVE-2021-22876

TITLE

curl  Information Disclosure Vulnerability

DESCRIPTION

curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request. curl Contains an information disclosure vulnerability.Information may be obtained. This could lead to exposure of the credentials to the server to which requests were redirected. (CVE-2021-22876) A vulnerability was found in curl where a flaw in the option parser for sending NEW_ENV variables libcurl can pass uninitialized data from a stack-based buffer to the server. The highest threat from this vulnerability is to confidentiality. (CVE-2021-22898). Bugs fixed (https://bugzilla.redhat.com/): 1944888 - CVE-2021-21409 netty: Request smuggling via content-length header 2004133 - CVE-2021-37136 netty-codec: Bzip2Decoder doesn't allow setting size restrictions for decompressed data 2004135 - CVE-2021-37137 netty-codec: SnappyFrameDecoder doesn't restrict chunk length and may buffer skippable chunks in an unnecessary way 2030932 - CVE-2021-44228 log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value 5. JIRA issues fixed (https://issues.jboss.org/): LOG-1897 - Applying cluster state is causing elasticsearch to hit an issue and become unusable LOG-1925 - [release-5.3] No datapoint for CPU on openshift-logging dashboard LOG-1962 - [release-5.3] CLO panic: runtime error: slice bounds out of range [:-1] 6. Summary: The Migration Toolkit for Containers (MTC) 1.6.3 is now available. Description: The Migration Toolkit for Containers (MTC) enables you to migrate Kubernetes resources, persistent volume data, and internal container images between OpenShift Container Platform clusters, using the MTC web console or the Kubernetes API. Solution: For details on how to install and use MTC, refer to: https://docs.openshift.com/container-platform/latest/migration_toolkit_for_containers/installing-mtc.html 4. Bugs fixed (https://bugzilla.redhat.com/): 2019088 - "MigrationController" CR displays syntax error when unquiescing applications 2021666 - Route name longer than 63 characters causes direct volume migration to fail 2021668 - "MigrationController" CR ignores the "cluster_subdomain" value for direct volume migration routes 2022017 - CVE-2021-3948 mig-controller: incorrect namespaces handling may lead to not authorized usage of Migration Toolkit for Containers (MTC) 2024966 - Manifests not used by Operator Lifecycle Manager must be removed from the MTC 1.6 Operator image 2027196 - "migration-controller" pod goes into "CrashLoopBackoff" state if an invalid registry route is entered on the "Clusters" page of the web console 2027382 - "Copy oc describe/oc logs" window does not close automatically after timeout 2028841 - "rsync-client" container fails during direct volume migration with "Address family not supported by protocol" error 2031793 - "migration-controller" pod goes into "CrashLoopBackOff" state if "MigPlan" CR contains an invalid "includedResources" resource 2039852 - "migration-controller" pod goes into "CrashLoopBackOff" state if "MigPlan" CR contains an invalid "destMigClusterRef" or "srcMigClusterRef" 5. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: Gatekeeper Operator v0.2 security updates and bug fixes Advisory ID: RHSA-2022:1081-01 Product: Red Hat ACM Advisory URL: https://access.redhat.com/errata/RHSA-2022:1081 Issue date: 2022-03-28 CVE Names: CVE-2019-5827 CVE-2019-13750 CVE-2019-13751 CVE-2019-17594 CVE-2019-17595 CVE-2019-18218 CVE-2019-19603 CVE-2019-20838 CVE-2020-12762 CVE-2020-13435 CVE-2020-14155 CVE-2020-16135 CVE-2020-24370 CVE-2021-3200 CVE-2021-3445 CVE-2021-3521 CVE-2021-3580 CVE-2021-3712 CVE-2021-3800 CVE-2021-3999 CVE-2021-20231 CVE-2021-20232 CVE-2021-22876 CVE-2021-22898 CVE-2021-22925 CVE-2021-23177 CVE-2021-28153 CVE-2021-31566 CVE-2021-33560 CVE-2021-36084 CVE-2021-36085 CVE-2021-36086 CVE-2021-36087 CVE-2021-42574 CVE-2021-43565 CVE-2022-23218 CVE-2022-23219 CVE-2022-23308 CVE-2022-23806 CVE-2022-24407 ==================================================================== 1. Summary: Gatekeeper Operator v0.2 Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Description: Gatekeeper Operator v0.2 Gatekeeper is an open source project that applies the OPA Constraint Framework to enforce policies on your Kubernetes clusters. This advisory contains the container images for Gatekeeper that include security updates, and container upgrades. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Note: Gatekeeper support from the Red Hat support team is limited cases where it is integrated and used with Red Hat Advanced Cluster Management for Kubernetes. For support options for any other use, see the Gatekeeper open source project website at: https://open-policy-agent.github.io/gatekeeper/website/docs/howto/. Security updates: * golang.org/x/crypto: empty plaintext packet causes panic (CVE-2021-43565) * golang: crypto/elliptic IsOnCurve returns true for invalid field elements (CVE-2022-23806) 3. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. The requirements to apply the upgraded images are different whether or not you used the operator. Complete the following steps, depending on your installation: - - Upgrade gatekeeper operator: The gatekeeper operator that is installed by the gatekeeper operator policy has `installPlanApproval` set to `Automatic`. This setting means the operator will be upgraded automatically when there is a new version of the operator. No further action is required for upgrade. If you changed the setting for `installPlanApproval` to `manual`, then you must view each cluster to manually approve the upgrade to the operator. - - Upgrade gatekeeper without the operator: The gatekeeper version is specified as part of the Gatekeeper CR in the gatekeeper operator policy. To upgrade the gatekeeper version: a) Determine the latest version of gatekeeper by visiting: https://catalog.redhat.com/software/containers/rhacm2/gatekeeper-rhel8/5fadb4a18d9a79d2f438a5d9. b) Click the tag dropdown, and find the latest static tag. An example tag is 'v3.3.0-1'. c) Edit the gatekeeper operator policy and update the image tag to use the latest static tag. For example, you might change this line to image: 'registry.redhat.io/rhacm2/gatekeeper-rhel8:v3.3.0-1'. Refer to https://open-policy-agent.github.io/gatekeeper/website/docs/howto/ for additional information. 4. Bugs fixed (https://bugzilla.redhat.com/): 2030787 - CVE-2021-43565 golang.org/x/crypto: empty plaintext packet causes panic 2053429 - CVE-2022-23806 golang: crypto/elliptic IsOnCurve returns true for invalid field elements 5. References: https://access.redhat.com/security/cve/CVE-2019-5827 https://access.redhat.com/security/cve/CVE-2019-13750 https://access.redhat.com/security/cve/CVE-2019-13751 https://access.redhat.com/security/cve/CVE-2019-17594 https://access.redhat.com/security/cve/CVE-2019-17595 https://access.redhat.com/security/cve/CVE-2019-18218 https://access.redhat.com/security/cve/CVE-2019-19603 https://access.redhat.com/security/cve/CVE-2019-20838 https://access.redhat.com/security/cve/CVE-2020-12762 https://access.redhat.com/security/cve/CVE-2020-13435 https://access.redhat.com/security/cve/CVE-2020-14155 https://access.redhat.com/security/cve/CVE-2020-16135 https://access.redhat.com/security/cve/CVE-2020-24370 https://access.redhat.com/security/cve/CVE-2021-3200 https://access.redhat.com/security/cve/CVE-2021-3445 https://access.redhat.com/security/cve/CVE-2021-3521 https://access.redhat.com/security/cve/CVE-2021-3580 https://access.redhat.com/security/cve/CVE-2021-3712 https://access.redhat.com/security/cve/CVE-2021-3800 https://access.redhat.com/security/cve/CVE-2021-3999 https://access.redhat.com/security/cve/CVE-2021-20231 https://access.redhat.com/security/cve/CVE-2021-20232 https://access.redhat.com/security/cve/CVE-2021-22876 https://access.redhat.com/security/cve/CVE-2021-22898 https://access.redhat.com/security/cve/CVE-2021-22925 https://access.redhat.com/security/cve/CVE-2021-23177 https://access.redhat.com/security/cve/CVE-2021-28153 https://access.redhat.com/security/cve/CVE-2021-31566 https://access.redhat.com/security/cve/CVE-2021-33560 https://access.redhat.com/security/cve/CVE-2021-36084 https://access.redhat.com/security/cve/CVE-2021-36085 https://access.redhat.com/security/cve/CVE-2021-36086 https://access.redhat.com/security/cve/CVE-2021-36087 https://access.redhat.com/security/cve/CVE-2021-42574 https://access.redhat.com/security/cve/CVE-2021-43565 https://access.redhat.com/security/cve/CVE-2022-23218 https://access.redhat.com/security/cve/CVE-2022-23219 https://access.redhat.com/security/cve/CVE-2022-23308 https://access.redhat.com/security/cve/CVE-2022-23806 https://access.redhat.com/security/cve/CVE-2022-24407 https://access.redhat.com/security/updates/classification/#moderate https://open-policy-agent.github.io/gatekeeper/website/docs/howto/ 6. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYkHUf9zjgjWX9erEAQiizw//XXMOXR1Xe/Fp6uV2DCknXEAWJbYuGV43 9a87QSq5ob3vbqGGXQXLU6ENjFtAx37/+5+UqAVbzcj+LQ0lV6Ny9rVzolDT4ltG k7J/BUd/kyr9G5gbiih3D/tm8dLh/rLft8FKgB+hEw+NcXnFlEvW5iEymqAsyH/D mrcgCrASFoWG4S4/JC+g8r1TRHAJj4ERAy4ZpDqn/eoOWY3jD+rPv1VD5Z+XaE07 +jw+mvZukP2l0374Yn3W+g7uVOZ5RSqSpEzBZoSy3ffYAqpK+oQ7eN19DOW7l3tr Ko/4h4OmLcOtIRedyt86xJe+zY7Ovo1cRP1TUgRapZGpTCPjaQ/okOhAIh03uxrx ceCawNnagBB1iglJl29GNRUUUU0JWhbEPDLepSjfsyOwkJxvtUulC/W+RJVfpE7Q LimNdHDJbFWN1x4IujdJNOCjPnBj6sG84PxLIjx5hM07ARRCBfrHutmlBm6Aq8Ej mcNPudtyufYuAqcNx8Pe04kwRmzeukNm/qVvr+ywG1+Rp4yo3mkxplZY+5z7S2sH vsciDeEGg6CAh7Sm/zfN3fpvNei1WhzcSxKsHMLB40ASJU2sMe1tt9b2pPhaHfXK lYnIN38GSqlQUjvb1jy8ymzOT3+73uCjYQrVbsGXoevb1639pasWv5i9dyx27kPb 1PnhEG7/jO4=XPu4 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . Summary: Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 8 zip release for RHEL 7, RHEL 8 and Microsoft Windows is available. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release adds the new Apache HTTP Server 2.4.37 Service Pack 8 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 7 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release. Security Fix(es): * curl: Use-after-free in TLS session handling when using OpenSSL TLS backend (CVE-2021-22901) * httpd: NULL pointer dereference on specially crafted HTTP/2 request (CVE-2021-31618) * libcurl: partial password leak over DNS on HTTP redirect (CVE-2020-8169) * curl: FTP PASV command response can cause curl to connect to arbitrary host (CVE-2020-8284) * curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used (CVE-2020-8285) * curl: Inferior OCSP verification (CVE-2020-8286) * curl: Leak of authentication credentials in URL via automatic Referer (CVE-2021-22876) * curl: TLS 1.3 session ticket mix-up with HTTPS proxy host (CVE-2021-22890) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Solution: Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link for the update. You must be logged in to download the update. Bugs fixed (https://bugzilla.redhat.com/): 1847916 - CVE-2020-8169 libcurl: partial password leak over DNS on HTTP redirect 1902667 - CVE-2020-8284 curl: FTP PASV command response can cause curl to connect to arbitrary host 1902687 - CVE-2020-8285 curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used 1906096 - CVE-2020-8286 curl: Inferior OCSP verification 1941964 - CVE-2021-22876 curl: Leak of authentication credentials in URL via automatic Referer 1941965 - CVE-2021-22890 curl: TLS 1.3 session ticket mix-up with HTTPS proxy host 1963146 - CVE-2021-22901 curl: Use-after-free in TLS session handling when using OpenSSL TLS backend 1968013 - CVE-2021-31618 httpd: NULL pointer dereference on specially crafted HTTP/2 request 5. ========================================================================== Ubuntu Security Notice USN-4898-1 March 31, 2021 curl vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: curl could be made to expose sensitive information over the network. Software Description: - curl: HTTP, HTTPS, and FTP client and client libraries Details: Viktor Szakats discovered that curl did not strip off user credentials from referrer header fields. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2021-22876) Mingtao Yang discovered that curl incorrectly handled session tickets when using an HTTPS proxy. A remote attacker in control of an HTTPS proxy could use this issue to bypass certificate checks and intercept communications. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-22890) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: curl 7.68.0-1ubuntu4.3 libcurl3-gnutls 7.68.0-1ubuntu4.3 libcurl3-nss 7.68.0-1ubuntu4.3 libcurl4 7.68.0-1ubuntu4.3 Ubuntu 20.04 LTS: curl 7.68.0-1ubuntu2.5 libcurl3-gnutls 7.68.0-1ubuntu2.5 libcurl3-nss 7.68.0-1ubuntu2.5 libcurl4 7.68.0-1ubuntu2.5 Ubuntu 18.04 LTS: curl 7.58.0-2ubuntu3.13 libcurl3-gnutls 7.58.0-2ubuntu3.13 libcurl3-nss 7.58.0-2ubuntu3.13 libcurl4 7.58.0-2ubuntu3.13 Ubuntu 16.04 LTS: curl 7.47.0-1ubuntu2.19 libcurl3 7.47.0-1ubuntu2.19 libcurl3-gnutls 7.47.0-1ubuntu2.19 libcurl3-nss 7.47.0-1ubuntu2.19 In general, a standard system update will make all the necessary changes. Description: Openshift Logging Bug Fix Release (5.3.0) Security Fix(es): * golang: x/net/html: infinite loop in ParseFragment (CVE-2021-33194) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Solution: For OpenShift Container Platform 4.9 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.openshift.com/container-platform/4.9/release_notes/ocp-4-9-release-notes.html For Red Hat OpenShift Logging 5.3, see the following instructions to apply this update: https://docs.openshift.com/container-platform/4.7/logging/cluster-logging-upgrading.html 4. Bugs fixed (https://bugzilla.redhat.com/): 1963232 - CVE-2021-33194 golang: x/net/html: infinite loop in ParseFragment 5. JIRA issues fixed (https://issues.jboss.org/): LOG-1168 - Disable hostname verification in syslog TLS settings LOG-1235 - Using HTTPS without a secret does not translate into the correct 'scheme' value in Fluentd LOG-1375 - ssl_ca_cert should be optional LOG-1378 - CLO should support sasl_plaintext(Password over http) LOG-1392 - In fluentd config, flush_interval can't be set with flush_mode=immediate LOG-1494 - Syslog output is serializing json incorrectly LOG-1555 - Fluentd logs emit transaction failed: error_class=NoMethodError while forwarding to external syslog server LOG-1575 - Rejected by Elasticsearch and unexpected json-parsing LOG-1735 - Regression introducing flush_at_shutdown LOG-1774 - The collector logs should be excluded in fluent.conf LOG-1776 - fluentd total_limit_size sets value beyond available space LOG-1822 - OpenShift Alerting Rules Style-Guide Compliance LOG-1859 - CLO Should not error and exit early on missing ca-bundle when cluster wide proxy is not enabled LOG-1862 - Unsupported kafka parameters when enabled Kafka SASL LOG-1903 - Fix the Display of ClusterLogging type in OLM LOG-1911 - CLF API changes to Opt-in to multiline error detection LOG-1918 - Alert `FluentdNodeDown` always firing LOG-1939 - Opt-in multiline detection breaks cloudwatch forwarding 6

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

information disclosure

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Ubuntu

SOURCES

LAST UPDATE DATE

2025-07-08T20:51:15.476000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE